Tbustees



(No Model.)

L. GODDU.

NAILING MACHINE.

Patented ov. 13, 1883..

N. PETERS. Ptmwlilhognphrr. Wanhlnglnn. n. z;

UNITED STATES "Arniyr rricn.

LOUIS GODDU, QF VVINOHESTER, MASSACHUSETTS, ASSIGNOR TO GORDON MOKAY, OF NEWVPORT, RHODE ISLAND, AND JAMES WV. BROOKS, OF CAMBRIDGE, MASSACHUSETTS, TRUSTEES.

NAILING-NIACHINE.

SPECIFICATION forming part of Letters Patent No. 288,423, dated November 13, 1883.

' 1 Application filed September 11, 1 893. (No model.) m

To all whom it may concern:

Be it known that I, LOUIS GoDDU, of Winchester, county of Middlesex, State of Massachus etts, have invented an Improvement in Nailing-Machines, of which the following de p the chute to the driver-passage, to be struck I of the said nail to gradually travel along beby the driver,and, as herein shown, I have represented the apparatus as adapted to feed nails at will from either of two chutes; but it is obvious that myimproved conical carrier may operate in a machine having but one roadway. In this invention the roadways, one or more, are provided each with a conelike screw-threaded carrier, the cones being pointed toward or having their smallest ends directed toward the nail-feeding drum, a part of the threaded periphery of each carrier being extended laterally into a roadway, so that the shank of a nail may be caught by the smallest end of the conical carrier, the latter, by its intermitting rotation,causing the shank tween the threads at the periphery of the said carrier and be delivered from its base end under the driver-passage. The pitch of the threads of the conical carrier and the size of the same transversely is such that the space shown has five threads, its diameter being sufficient to receive that number of threads of the required pitch to carry the nails in proper position from the roadway under the driver. The threads areincreased in number because of the slowness of rotation of the carrier as compared with that of the usual driver-actuating shaft; but it is obvious that the said carrier may have more or less threads than five.

This invention consists, essentially, in the combination, with the roadway or chute of a nailing-machine, of a conical separator or carrier having its screw-threaded peripheryprojected'into one side of the said roadway in such manner as to permit the nails to come upon the smallest end thereof and enter its threads singly, as will be described, the said conical separator carrying the nails singly to the driver-passage and there dischargingthem.

My invention also consists in the said coni-- cal carrier combined with mechanism, as will be described. for moving it.

Figure 1 is a partial front view of a sufficient portion of the machine represented in thesaid patent to enable one conversant therewith to understand my present invention. Fig. 2 is an enlarged viewof the right-hand side of'Fig. 1, partially broken out; Fig; 3, a section of Fig. 1 on the dotted line :10 m, but enlarged; Fig. 4, a detail of the conical separator and carrier detached, and Fig. 5 details of the pawl-and-ratchet contrivance for turning the shaft of the conical separator and car rier.

driver-bar a, the nail-receiving drum E, the chute m, lever a the stops f" f, tube f spring-pressed pin f therein, throat c, and shaft (3 are substantially the same as in my said patent, wherein mechanism is shown for actuating them, and their operation is fully explained.

The rotating shaft 0 has attached to it a double cam-hub, A, it having two cainfaces, 2 3. The cam-face 3 acts on a roller-stud, 4, of an arm, 5, having a stud, 6, fast to it, and extended through a hole in the head B,where it has fast upon it a sector, 7, the teeth of which engage a gear-like pawl-carrier, 8, loose on the hub of a ratchet, 9, (see Fig. 5,) pinned to the shaft 10 by a pin, 11, the said shaft being extended diagonally through the nose and In the drawings, the vibrating head B, the I into the chute parallel with the center line of I from the cam 2, as in Fig. 3; but if the sepathe roadway therein. The shaft has fast upon it the conical separator and carrier 13, herein shown as provided with five threads, the pitch and size of which is right to bring the nails 14 rapidly from the roadway of the chute into position under the usual driver shown in the said patent, the said conical separator receiving the nails singly between the threads at its small end, and gradually moving the said nails along the said roadway between it and the face of the wall of the chute; but as the nail reaches the end of a groove, 16, it will have been carried perpendicularly under the driverand into the driver-passage, so that the driver in its descent will strike the said nail and drive it, the thread of the screw forming at such time a part of the driver-passage. Just as the nail is removed from the screw by the driver the front end, 17, of a thread will be in the proper position with relation to the nails in the chute to permit one of them to enter or jar well into the said thread.

The conical screw-threaded separator and carrier is rotated in the direction of the arrow thereon, or upward with relation to the roadway, thus obviating all tendency of thenails to bind or stick in the roadway. Moving the separator in such direction causes the nails to travel very freely along the roadway, and a part of the friction on the roadway due to the gravity of the nail is thus overcome.

The pawl-carrier 8 has apawl, 20, acted up on by a spring, 21, which keeps .it in engagement with the ratchet 9, and the latter or the shaft 10 will in practice have a suitable friction device to prevent the motion overrunning.

I have herein shown the chute as provided with two roadways, 22 23, each to receive nails of the proper width.

Having described the operation of one set of devices to feed the nails along in the roadway 23, it will be understood with like devices in the other roadway, 22, that the same operation of nail-feeding will be carried on in that roadway of the chute if it is desired to take nails from it. I have herein marked the corresponding devices with the same figures in connection with the letter 00. If the roadway 23 and separator and carrier 13 are to operate, the sleeve f common to the said patent, will be turned to cause the stop f to lock the arm 5 away rator and carrier 13 is to be the feeder of the nails from the roadway 22, then the said sleeve f will be turned to enable the stop f to move inward far enough to arrest the inner edge of the said arm and prevent it from being drawn against the cam 3 by the spring B, commonto both arms 5 5. The chute is jointed to the nose 0 by the bolt 30. The ratchet 9 has one tooth for each thread of the screw 13. Each movement of the screw 13 carries the nail for a distance equal to its diameter.

I claim 1.- In a nailing-machine, a chute and roadway therein, combined with a conical screwthreaded separator and carrier, substantially as shown and described, to operate substantially as described.

2. In a nailing-machine, a chute and roadway therein for nails, and a throat having a nail and driver passage, combined with a rotating conical screw-threaded separator and carrier, substantially as shown and described, adapted to receive a nail in the said roadway and carry it positively and deliver it at or into the driver-passage, substantially as described.

3. I11 a nailing-machine, a chute and a roadway therein, combined with a conical screwthreaded separator and carrier having a rotation in an upward direction with relation to the vertical walls of the roadway, substantially as described.

4. The head B, shaft 0, suitable cam thereon, connected arms 5 7, pawl and'ratchet shaft 10, and conical screw 13, combined with the chute and its roadway, and nose 0, to operate substantially as described.

5. In a nailing-machine, achute, two roadways, and two conical threaded screws, 13 '13, arranged therein as shown and described,and their shafts 10 10, combined with means, substantially as set forth, to operate either of the said screws inter'mittingly to feed nails from either chute at will.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

LOUIS GODDU.

Witnesses:

G. W. GREGORY, B. J. Novas. 

